import * as Sequelize from 'sequelize' async function up (utils: { transaction: Sequelize.Transaction queryInterface: Sequelize.QueryInterface sequelize: Sequelize.Sequelize }): Promise { const data = { type: Sequelize.DATE, allowNull: true, defaultValue: null } await utils.queryInterface.addColumn('video', 'originallyPublishedAt', data) } function down (options) { throw new Error('Not implemented.') } export { up, down }